Safetypin



Feb. 11, 1936. I

' J. M. ABRAMS SAFETYPIN Filed Oct. 15, 1955 INVENT OR.

Jo hn M/Jbrama. BY a I ATTORNEY.

Patented Feb. 11, 1936- I'UNITED STATES PATENT oFFICE' sarnrrrm John M.Abrams, Brooklyn, N. Y. Application October 15, 19:5, sol-n1 No. 45,0235 Claims. (01. 24-162) The invention relates to locking safety-pins, andmore especially to certain novel features of construction of such pinswhereby the locking action may be mademore secure.

It has for an object the provision of a pin which cannot accidentallybecome unfastened and which, therefore, will be found useful where asafety-pin of the ordinary type cannot be reliably utilized,

'andwithal be neat and inconspicuous in appearance and withoutobjectionable projections.

A further object of the invention resides in the provision of simple andeifective means to obviate the injuries, diflicuities-and annoyances dueto the accidental unfastefiing of the pin, and

which may be inexpensively manufactured and r expeditiously applied tothe normal pin structure.

A still further object-of the invention resides inthe provision of anautomatically actuated pin point locking element associated with theusual guard provided with asafety-pln.

Another object of the invention resides in .the provision of a lockingelem'entwhich must'be manually displaced for unlocking of the pinsection.

In carrying out the invention, the usual form of safety-pih-comprising apiece of spring wire with body portion or shank terminating at one end.

in a spring hinge and pin section with the oppcsite end'turned over toreceive a guard-is equipped with a coil spring element movably mounted.around one leg of the customary U- shaped. guard, being secured therebyat its outer end. At this end, said coil is adapted to be engaged by thepinpoint in closing the pin section, pressing the coil backwardlyandcompressing the coil until the said pin point slips thereinto. Thefree end of this coil to this end is suitably guided and held,preferably, in a longitudinal slot of the guard member.

An inclined or inwardly tapered depression in the wall portion of theguard member-may be provided as an approach portion to the slot forconvenience in assembling the coil around the one leg of the guardmember, an inwardly directed, radial extension of the abutting end ofthe spring passing this approach portion and an inwardly directed,radial extension of. the free end first riding over this approachportion and then springing into the slot.

The nature'of the invention, however, will best be understood whendescribed in connection with the accompanying drawing, in which;

Fig. 1 is an enlarged fragmentary longitudinal section of the novelsafety-pin which is shown in elevation in Fig.2, the section being takenon the line l- -l of said Fig. 2, and looking in the direction of thearrows-the pin section being indicated in a position about to be lockedin the pin guard and novel locking. element.

Figs, 3 and 4 are similar views illustrating the 5 pin section in lockedposition, Fig. 3 being a. longitudinal section, on an enlarged scale andtaken on the line 33, Fig. 4, looking in the direction of the arrows.

Fig. 5 is an enlarged elevation of the pin guard 10 with associatedlocking element; and Fig. 6 is an elevation of the said locking element.

Fig. 7 is a transverse section, on an enlarged scaie,,taken on the line1-1, Fig. 4 of the drawing, and looking in the direction of the arrows.

Referring to the drawing, the novel safetypin is formed in the usualmanner of spring wire and embodies a body portion or shank III whichterminates at one end in a spring hinge and pin section II. The oppositeend of the pin is 29 bent over -or arcuate, as indicated at l3, toreceive frictionally a portion of a hollow pin guard I l in which is'tobe located in the usual manner the pin point. I 5 when the safety-pin isclosed.

- It has been found, however; that this means of 25 holding the pinpoint is not reliable. and that the pin point frequently becomesaccidentaily' vunifastened from its guard. Babieshave been known to haveopened pin and received injuries thereby. In accordance with the present.in- 30 vention, provision is made for insuring the retention of the pinpoint l5 within the pin guard l4 until it .to release the same; To thisend, the guard I I, which is of the customary U-shape, is arranged tohave associatedthere- 5 with around one of the legs, to wit:- the leg itwhich is hollow and-slit inwardly and in which the pin point i 5 isadapted to locate, a moyablecoil spring element 11. The latterisdesigned to Its outer free end is likewise provided with an inwardlydirected radial extension 2| designed to fit into a guide slot 22provided longitudinally in the side wall of member l6. By thisexpedient, the convolutions of spring I! may be compressed,

as indicated in Fig; 2, as the pin point l5 engages 5 the outermostconvolution in bringing the pin section I! downwardly for location pinpoint IS in the 'member ii in the usual manner of closing a safety-pin.As soon as pin point I! slips by the said convolution, however, thespring will expand under its inherent resiliency, riding over thelocated-pin point until arrested at the outer end of the slot 22, andthus securely retaining the pin point against dislodgment.

To open the safetyin, it is necessary merely to retract manually thespring ll until its outer: most convolution clears the pin point l5sumciently to freethe same, whereupon, upon pressing upwardly upon thepin section I! in the usual manner for releasing the safety-pin, thesaid pin point is freed from the guard ll.

For convenience in assembly and to insure retention of spring elementl'l upon the guard member, it is preferred to provide the leg portionlt'thereof with an approach portion 23 juxtaposed to the slot 22 andtapering from the outer end of leg l5 upwardly toward said slot. By

this expedient, the inwardly directed radial extension 2| is tensionedas it rides over the approach portion 23, in inserting the coil aroundmember l6, until it reaches the slot 22 to spring therein and where itthen remains securely to guide said coil in its reciprocations.

I claim:

1, A safety-pin formed of spring wire and em-' bodying a body portion orshank terminating at one end in a spring hinge and pin section, the

opposite end terminating in an arcuate section,

a pinguardsecured over thearcuate section to receive the free end of thepin section, and a adapted to be moved by the pin section inclosing' thepin; until the same slips into the outeruntil the latter ismanuallymoved.

opposite end terminating in an arcuate section, a pin guard secured overthe arcuate section to receive the free end of the pin section, and acoil spring element movably secured to the guard and coil elementmovablysecured totheguard and adapted to be contracted by the pinsection in closing the pin until the same slips into the outermostconvolution to be retained within the coil until the latter is manuallyretracted.

3. A safety-pin formed of spring wire and embodying a body portion orshank terminating at one end in a spring hinge and pin section, the

opposite end terminating in anarcuate section,

a U-shaped pin guard secured over the arcuate section, oneleg thereofbeing slotted longitudinally to afiord a guide and stop, and a coilelement movably secured around the slotted leg with the outermostconvolution having an inwardly directed, radial extension adapted todrop into the slot as the coil is located around the said slotted leg.

4. A saIety-pin formed of spring wire and embodying a body portion orshank terminating at 7 one end in a spring hinge and pin section, theopposite end terminating in an arcuate section,

a U-shaped pin guard secured over thearcuate section, one leg thereofbeing slotted longitudinally to afford a guide and stop and providedwith juxtaposed inwardly tapering depression, and a coil element movablysecured to the slotted leg with the outermost convolution having aninwardly directed, radial extension adapted to ride on the tapereddepression to drop into the slot as the coil is located around the saidslotted leg.

5. A safety-pin formed of spring wire and embodying a body portion orshank terminating at one end in a spring hinge and pin section, theoppositeend terminating in an arcuate sectioma U-shaped pin guardsecured over the arcuate section; one leg thereof being slottedlongitudinally to afford a guide and stop and provided with juxtaposedinwardly tapering depression, and a coil element movably secured aroundthe slotted leg' with the outermost convolution having an inwardlydirected, radial extension adapted to ride on the tapered depression todrop into the slot as the coil is located around the said slotted leg,theinner end of said coil being provided'with an inwardly directed,-radial extension adapted to enter the U-shap'ed guard toabutsaidguard. f

